There is an SBIR solicitation out:  A03-141   Thermobaric Blast Pressure Gauges

You can read the detail at:
http://www.acq.osd.mil/sadbu/sbir/solicitations/sbir032/army032.htm

It may be fit for a MEMS solution. If anyone is interested but not sure how to
go after  SBIR, I do have some experience and could make some suggestions.

-Jim Intrater
[email protected]